As the creation of websites increase and the items posted on websites increase, it is important that we are aware of the size of the media we post. For example a 7 minute video will be about 315 MB if it is exported as a QuickTime. But if you export it as an MPEG-4 it will be about 78 MB. It also takes longer for large movies to load on a website. When you go to iMovie to Share your movie, select the MPEG-4 option under Export.
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